Intel

CVE-2026-67822

Tenda W6-S 1.

criticalEPSS 0.5%

Description

Tenda W6-S 1.0.0.4(510) contains a stack-based buffer overflow vulnerability in the /goform/wifiSSIDset endpoint. The function formwrlSSIDset uses sprintf to copy user-controlled 'GO' and 'index' parameters into a 64-byte stack buffer without length restriction, leading to stack overflow.

Source: NVD (NIST)CVE.org (MITRE)cvelistv5

Metrics

XIEM Effective CVSS
9.8
Source: nvd-v3
EPSS percentile
42.3 %
High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
KEV status
—
Show all metrics
Severity
critical
Priority score
87.11
Exploit maturity
no public PoC known
CVSS v3
9.8
EPSS score
0.5 %
Low — model estimates < 1% exploitation likelihood.
Published
2026-07-31 17:16 UTC

References & sources

Reanalysis & status changes

Chronological NVD audit events for this CVE — reanalyses, CVSS updates, CPE diffs.

  1. New CVE Received2026-07-31 17:16 UTC· cve@mitre.org
    • Affected: n/a
    • Description: Tenda W6-S 1.0.0.4(510) contains a stack-based buffer overflow vulnerability in the /goform/wifiSSIDset endpoint. The function formwrlSSIDset uses sprintf to copy user-controlled 'GO' and 'index' parameters into a 64-byte stack buffer without length restriction, leading to stack overflow.
    • Reference: https://github.com/Tristerjh/Tenda/blob/main/Tenda_W6-S_GO_overflow.md

Linked advisories